All categories

3 years ago

I also got stuck on this one.

Mathematics

2 answers:

nexus9112 [7]3 years ago

8 0

Answer:

8Step-by-step explanation:

100-2x=84

subtract 84 from both sides

16-2x=0

add 2x to both sides

16=2x

divide both by 2 to get x

x=8

hope this helped

Rama09 [41]3 years ago

6 0

Answer:

8 questions.

Step-by-step explanation:

100 - 2x = 84

-2x + 100 = 84

-x + 50 = 42

x - 50 = -42

x = 8

Trevor answered 8 questions incorrectly.

Hope this helps!

You might be interested in

3. Ken solved the linear equation 2(5y - 1) = 18 using the following steps.

OlgaM077 [116]

Answer:

Step-by-step explanation:

he actually made a mistake in second step. Step 2 should be: 10y-2=18 and then 10y=18+2

we get 10y=20 /:10

y = 2

7 0

3 years ago

Read 2 more answers

Use elimination method to solve the system of equations choose the correct ordered pairs 3x-4=-30 3x+2y=6

DiKsa [7]

The answer is C(-2, 6).

I think you forgot the y in the first equation (with the -4.

4 0

2 years ago

how to integrate <img src="https://tex.z-dn.net/?f=e%5E%7B2s%7D%20%2ACos%20%5Cfrac%7Bs%7D%7B4%7D" id="TexFormula1" title="e^{2s}

icang [17]

Answer:

$\int\limits {e^{2s} cos\frac{s}{4} ds$ = $\frac{4 e^{2s} }{65 } ({8 cos (\frac{1}{4} ) s + sin \frac{1}{4} s} ))$

Step-by-step explanation:

Step(i):-

Given that $f(s) = e^{2s} cos\frac{s}{4}$

Now integrating

$\int\limits {f(s)} \, ds = \int\limits {e^{2s} cos\frac{s}{4} ds$

By using integration formula

$\int\limits { e^{ax} cos b x dx = \frac{e^{ax} }{a^{2}+b^{2} } ( a cos b x + b sin b x )$

Step(ii):-

$\int\limits {e^{2s} cos\frac{s}{4} ds$ = $\frac{e^{2s} }{(2)^{2}+(\frac{1}{4}) ^{2} } ( 2 cos (\frac{1}{4} ) s + \frac{1}{4} sin \frac{1}{4} s ))$

= $\frac{e^{2s} }{(4+\frac{1}{16})} ( 2 cos (\frac{1}{4} ) s + \frac{1}{4} sin \frac{1}{4} s ))$

= $\frac{e^{2s} }{(\frac{65}{16} } ( \frac{8 cos (\frac{1}{4} ) s + sin \frac{1}{4} s}{4} ))$

= $16 X\frac{e^{2s} }{65 } ( \frac{8 cos (\frac{1}{4} ) s + sin \frac{1}{4} s}{4} ))$

= $\frac{4 e^{2s} }{65 } ({8 cos (\frac{1}{4} ) s + sin \frac{1}{4} s} ))$

Final answer:-

$\int\limits {e^{2s} cos\frac{s}{4} ds$ = $\frac{4 e^{2s} }{65 } ({8 cos (\frac{1}{4} ) s + sin \frac{1}{4} s} ))$

6 0

3 years ago

Solve for x by factoring x^2 + 2x = 24 Please help

ryzh [129]

= 4

= -6
HOPE THIS HELP ^_^

5 0

2 years ago

Write the ratios for sin x and cos XWrite the ratios for sin

VashaNatasha [74]

$\sin(x) = \frac{ \sqrt{119} }{12} \\ \cos(x) = \frac{5}{12}$

7 0

3 years ago